Peter Berlin left his native Sweden the day after graduating from university, and has always looked back since. He maintains that you have to go abroad to view your country in perspective, for how can one size up a whale from within? Of course Sweden is not a whale but a slightly fermented herring, usually delectable but sometimes hard to swallow. His Canadian wife, a textile artist, has given him a wider focus on Sweden. When there she roams the forests in search of mushrooms for dyeing wool and places each days harvest on the hotel room radiator to dry overnight, slowly asphyxiating her